MBtek
EKO DUO 150 Hybrid Coal Boiler, 500K BTU

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Hybrid Coal Boiler — EKO DUO Industrial (entry tier)

EKO DUO 150 Hybrid Coal Boiler, 500K BTU

Heating Capacity: Up to 15,000 ft²

Entry industrial EKO DUO for commercial and industrial hydronic heating loads.

Automatic Ash Removal
Automatic
Hopper side
Left
$29,034
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  • UNI wood boiler installed in a green mechanical room beside a vertical water storage tank.
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  • UNI wood boiler installed with copper hydronic piping, pumps, valves, and temperature controls.
  • MBTEK boiler system with a black and orange cabinet unit and orange hopper in a utility basement.
  • Side view of an orange EKO Duo hybrid coal boiler and integrated fuel hopper in a concrete mechanical room.
  • Side view of an EKO Duo boiler with closed access doors and digital controller in a mechanical room.

Installed in real homes and workshops

Customer Success Stories

We replaced our aging system with this MBtek wood boiler and the savings were immediate. It burns so efficiently, we're using significantly less wood to get much more consistent, powerful heat. It's transformed our monthly budget.

Slash Your Heating Bills

Maximize savings with high-efficiency automated wood chip combustion.

Product details

  • Multi-fuel versatility
  • Extended autonomy
  • True hybrid system
  • Smart continuous cycle

EKO DUO 150 hybrid boiler, 500K BTU

Commercial-use automatic self-cleaning Hybrid Coal Boiler built for larger hydronic systems, with configurable ash removal and hopper-side options on the EKO DUO platform.

Key Benefits

  • Automatic self-cleaning burner with rotary cast iron design for continuous commercial-duty operation
  • Flexible multi-fuel capability for coal, pellets, grains, and biomass up to 1 1/2", plus manual feeding for wood chips and peat briquette
  • Guaranteed 90% efficiency with a heat-exchanger design focused on complete heat recovery
  • TIS tronic 481R controller adapts combustion to load, weather, fuel quality, and hydronic system demand
  • Commercial configuration options include left or right hopper placement and manual or automatic ash removal
  • Front-access service design with ASTM A106 boiler steel construction supports easier maintenance

Specifications

  • Heating Capacity: 500,000 BTU
  • Commercial Use: For commercial applications only
  • Recommended Area: 15,000 ft²
  • Automatic Fuel Range: Coal up to 1"; also burns pellets, grains, and biomass
  • Hopper Volume: 400 gal / 4,000 lb of coal
  • Configuration Options: Manual or automatic ash removal with left or right hopper side
  • Autonomy: Up to 5 days depending on load and fuel
  • Coal Types: Anthracite and bituminous; rice, buckwheat, and pea sizes
  • Warranty: 10 years
Heating capacity (modulation)
185–510 KBTU
Efficiency
90%
Fuel consumption
132 lb/h
Boiler water volume
53 gal
Connection
2 in
Chimney diameter
8 in
Minimum chimney height
24 ft
Heat area
Up to 15,000 ft²
Hopper volume
238 gal
Hopper coal capacity
1,930 lb

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